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A cure for the colour (color) blind?

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1. The monkey is taking a vision test.
2. The test is usually taken by children across the USA.
3. The monkey is pointing out colourless blocks in coloured screens.
4. He receives grapes as a reward.
5. The monkey is colour blind.
6. He had particular problems with red and green.
7. The monkey has received new genes to his retinas.
8. The genes help him to see brighter colours.
9. The therapy will last 18 months.
10. He can distinguish different shades and brightness of colour.